An unexpected highly selective mononuclear zinc complex for adenosine diphosphate (ADP)

Area of Science:

• Inorganic Chemistry
• Analytical Chemistry
• Biochemistry

Background:

• Adenosine diphosphate (ADP) plays crucial roles in biological processes.
• Selective detection of ADP is important for biochemical research and diagnostics.
• Fluorescence-based detection methods offer high sensitivity and selectivity.

Purpose of the Study:

• To develop a simple and selective fluorescent sensor for ADP detection.
• To investigate the fluorescence response of a mononuclear zinc complex with anthracene groups.
• To evaluate the sensor's performance in neutral aqueous solutions.

Main Methods:

• Synthesis of a mononuclear zinc complex functionalized with anthracene groups.
• Spectroscopic analysis (fluorescence spectroscopy) to monitor the interaction with ADP.
• Testing the selectivity and sensitivity of the complex in aqueous buffer solutions.

Main Results:

• The zinc complex exhibited high selectivity towards ADP.
• A unique and significant increase in fluorescence was observed upon binding with ADP.
• The sensor demonstrated a strong fluorescence response in neutral aqueous solution.

Conclusions:

• A readily available mononuclear zinc complex acts as an effective fluorescent probe for ADP.
• The developed sensor shows promise for sensitive and selective ADP detection in biological samples.
• This finding presents a new avenue for developing advanced fluorescent sensors.